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  #11  
Unread 03-18-2008, 05:57 PM
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lylemcd lylemcd is offline
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Quote:
Originally Posted by Eszekial View Post
20% is tons of fat? I don't feel like i'm that fat. Whatev.

Your explanation doesn't jive /w me.
20% for a dude is fat

read 32-33 again, this is not difficult and I spelled it out. especially the part where I oint out that, at 10%, the difference in LBM and TBM is minimal

but it becomes greater as BF%age goes up and how using TBM becomes less accurate for that reason

which yours did.
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  #12  
Unread 03-19-2008, 05:43 AM
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I just read an article by Mr. Mc Donald..

Quote:
Originally Posted by lylemcd View Post
Id only note that for athletes carrying tremendous amounts of body fat (you know who you are), scaling protein intake back to take that into account may not be a bad idea. It may not be necessary, but it can still be done.
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  #13  
Unread 03-19-2008, 08:52 AM
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That pretty much spells it out for me. Mucho Gracias as always.
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  #14  
Unread 06-02-2008, 11:00 AM
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So when exactly should LBM be used? I always thought one should count their protein in LBM regardless of the amount of fat held. So being that I am at 220 15% BF my protein is calculated from 220 starting point?

I don't have this book yet, but this question intrigued me.
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  #15  
Unread 06-02-2008, 01:32 PM
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in theory, you should use LBM

but there are practical problems, not the least of which is getting an accurate measure of bodyfat percentage and thus LBM.

as folks get leaner, the difference between LBM and TBM goes down and down and it becomes far less relevant (e.g. at 180lbs 15% bodyfat, the diference between protein intakes of 1g/lb lean vs. total is 153 vs 180 grams protein);

at extremes of high bodyfat, protein values should be scaled downwards to compensate

I'd rather see people get a bit too much protein than a bit too little
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  #16  
Unread 09-30-2008, 02:31 PM
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Quote:
Originally Posted by lylemcd View Post
...at extremes of high bodyfat, protein values should be scaled downwards to compensate

I'd rather see people get a bit too much protein than a bit too little
At risk of sounding oblivious (not unfamiliar ground, really) do you mean downwards..or upwards here?

Let me rephrase....did you mean fatter folk need to align protein intake with their LBM....or more casually, their "goal/ideal" weight?

Last edited by DaMayor : 09-30-2008 at 02:34 PM.
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  #17  
Unread 09-30-2008, 04:40 PM
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downwards

to whit, consider a really extreme situation

person a: 200 lbs @ 10% bodyfat (20 lbs fat/180 lbs LBM)
person b: 200 lbs @ 40% bodyfat (80 lbs fat/120 lbs LBM)

if you set protein at 1 g/lb total bodyweight, that's 200 grams.

if you used LBM for person A, you'd still get 180 grams. small difference
if you used LBM for person B, yo'ud get 120 grams, huge difference

or consider someone recommending protein at 1.5 g/lb, the differences get even bigger. both would be recommended 300 but based on LBM, you've got 240 vs. 180.

as bodyfat percentage goes up, the more of an over-estimate using total body mass becomes.

ideal weight has its own set of problems although it is often used as a proxy for lean body mass. so that might be workable. I think my problem with it is that most people tend to pick ideal weight (whether themselves or with some equation) that are insanely unrealistic and this can do goofy crap to the diet setup

I think it's better to set up at least the baseline diet on the individuals' starting parameters (e.g. weight, etc) and then adjust it from there. but there yo'ure assuming you can get a decent estimate of starting parameters

basically every method has its own set of drawbacks
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  #18  
Unread 10-01-2008, 09:38 AM
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Gotcha.

Usually, my understanding of these things isn't too far off, but in an effort to verify what I (think) I know, I tend to mis-phrase questions.

I guess reading the book would help this......
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